Inverter



FIG. 1 is a top, front and side perspective view of an inverter showing our new design;

FIG. 2 is a top, rear and side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof; and,

FIG. 5 is a rear elevation view thereof. 

The ornamental design for an inverter, as shown and described. 